How many protons does sulfur have?

Subatomic particle that has a positive charge

The center of an atom is called the ________________.

In what part of an atom can the protons and neutrons be found?

In an atom, the number of protons is equal to the number of ____________.

Which subatomic particle moves around the nucleus?

What type of charge does a proton have?

What charge does an electron have?

What type of particles are found in the cloud that surrounding the atom's nucleus

Which student's responses are correct

An atom of which element is represented by this model?

A chemist is identifying the elements present in a sample of sea water. What characteristic of an elements atoms always the elements identity?

Which of the following best describes an electron?

What is the mass number of Potassium (K) atom that has 20 neutrons?

What element in group 18 only has 2 valence electrons?

Define Luster

Define ductile

Define brittle

Define malleable

Which element is found in Group 5, Period 4?

The modern Periodic Table of Elements arranges elements in order of

Which sequence of elements occurs as the atomic number increases across Period 3 of the periodic table?

What is the property of most nonmetals?

Which of the following is a nonmetal?

These elements highlighted in the periodic table shown below can be described as

Which of the following elements is a metal?

A student is implementing an investigation of physical properties using samples of metals, nonmetals, and metalloids. She uses a battery, wires, and a bulb to test if each of the samples will complete the circuit causing the bulb to light. Next, she shines a bright light on each of the samples. Which physical properties is the student investigating?

Which of the following elements is malleable?

Which of the following elements is a metalloid?

The periodic table is a system used to classify

Which element has a mass number greater than nitrogen, but less than neon?

The elements Potassium, Vanadium, Manganese and Calcium are examples of

The horizontal rows of elements are called

A student is asked to identify an element that is pale-yellow brittle solid and does not conduct electricity. At what location would the element most likely be found?

Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table below.

Based on these observations, which sample is most likely a nonmetal?

An element has a metallic gray appearance. It also has the properties of both a metal and a nonmetal. In which section of the periodic table indicated below would the element most likely be found?

An atom of Lithium has 3 protons, 3 electrons, and 4 neutrons. What is the atomic mass?

What subatomic particles identifies the actual identity of the element

What identifies the reactivity and chemical properties of an atom?

Which of the following would change the name of the element if one was added or removed from the atom?

Why is group 1 highly reactive?

Elements in the same ____________ have similar chemical properties

The group number equals?

An elements in group 18 are non reactive, stable, and inert because